var init = function() {
  PaintingFacade.getArtikelCount(cartCountListener);
  dojo.connect(dojo.byId("CARTIMG"),"click",cartClickHandler);
	dojo.connect(dojo.byId("CARTIMG2"),"click",cartClickHandler);
  dojo.connect(dojo.byId("CARTIMG3"),"click",cartClickHandler);
  dojo.connect(dojo.byId("SEARCHFORM"),"submit",searchCheck);    
}


var cartCountListener = function(resp) {
	var node = dojo.byId("ARTCONT");
	node.innerHTML = resp;
}

var searchCheck = function(evt) {
  if (dojo.byId("SSR").value == "") {
    alert("Bitte geben Sie einen Suchbegriff ein");
    dojo.stopEvent(evt);
  }
}


// event handler, that decides if a click on the shopping cart is allowed or not

cartClickHandler = function(evt) {
  counter = dojo.byId("ARTCONT");
  c = counter.innerHTML;
  if (c == "" || c == "0") {
     dojo.stopEvent(evt);
     alert("Warenkorb ist leer");
  }
}

 dojo.addOnLoad(init);